Question

For a human baby to be born a boy he must receive A. an X chromosome from the father. B. a Y chromosome from the mother. C. a Y chromosome from the father. D. both an X and a Y chromosome from the father.

Answer 1

C. a Y chromosome from his father

This is because boys have one X and one Y chromosome, while girls have 2 X's, so the Y must come from the father.

Hope this helps :D